Sorption of benzene, toluene and chloroform by poly(styrene) at 298.15 K and 323.15 K using a quartz crystal balance

被引：20

作者：

Wong, HC ^{[1
]}

Campbell, SW ^{[1
]}

Bhethanabotla, VR ^{[1
]}

机构：

[1] Univ S Florida, Dept Chem Engn, Tampa, FL 33620 USA

来源：

FLUID PHASE EQUILIBRIA | 1997年 / 139卷 / 1-2期

关键词：

vapor-liquid equilibria; vapor sorption; experimental method; quartz crystal balance; polymer;

D O I：

10.1016/S0378-3812(97)00158-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An isopiestic apparatus using the quartz crystal balance principle has been constructed for vapor sorption measurements on polymers. Isothermal solubilities of benzene, toluene and chloroform in poly(styrene) were measured in the concentrated polymer regime. Benzene results were obtained at 323.15 K, Toluene and chloroform results were obtained at 298.15 K and at 323.15 K. Solvent activities were represented with a modified Flory-Huggins activity model and compared with available literature data with favorable results. Comparisons were also made with predictions of three free volume activity models described in the literature. Details of the applicability and reliability of the quartz crystal balance for these sorption measurements are considered and discussed. (C) 1997 Elsevier Science B.V.

引用

页码：371 / 389

页数：19

共 33 条

[1] THE ABSORPTION OF ORGANIC VAPOURS BY THIN FILMS OF POLYSTYRENE [J].